In-Service Performance Evaluation of Guardrail End Treatments (2018) / Chapter Skim
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Pages 119-121
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From page 119... ...
Appendix A Commissioned Papers The committee commissioned three resource papers to support its work: Heimbecker, C., and E
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120 PERFORMANCE EVALUATION OF GUARDRAIL END TREATMENTS • Maintenance practices for guardrail and end treatments; and • In-service evaluation of performance of roadside hardware. Highlights of the authors' conclusions related to the committee's task include the following: • In construction projects, highway agency designers typically specify the category of end treatment (e.g., energy absorbing or non– energy absorbing)
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APPENDIX A 121 • Estimating benefits and costs of replacing installed end treatments with better-performing designs, • Providing data to support the improvement of end treatment designs, and • Refining crash test procedures. The reviews summarize examples of study design and data analysis methods for these applications, including the case-control method and multivariate methods of risk modeling, including the empirical Bayes method.
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